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Proceedings Paper

Slow and backward waves in plasmonics
Author(s): Meir Orenstein; Eyal Figenbaum; Noam Kaminski
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Paper Abstract

Surface plasmon polariton is a coupled electromagnetic wave and material (electron) density wave. This efficient coupling is the primary means of transforming light to a heavier particle which yields the desired "light slowing". The dispersion curve of surface plasmonic waves exhibits both wave slowing (phase velocity) and light slowing (group velocity). We detail the different avenues for light slowing and reversing (backward propagation) in a plasmonic structure based on a dielectric gap between two metal plates. Light slowing and almost stopping can be achieved as well as the more intriguing effect of backward propagation, accompanied by negative refraction. These effects in plasmonic structures can be used for nano virtual cavities (mirrorless cavities) for ultralow volume sensing as well as generating large local field enhancement.

Paper Details

Date Published: 29 January 2008
PDF: 8 pages
Proc. SPIE 6904, Advances in Slow and Fast Light, 69040U (29 January 2008); doi: 10.1117/12.773910
Show Author Affiliations
Meir Orenstein, Technion-Israel Institute of Technology (Israel)
Eyal Figenbaum, Technion-Israel Institute of Technology (Israel)
Noam Kaminski, Technion-Israel Institute of Technology (Israel)

Published in SPIE Proceedings Vol. 6904:
Advances in Slow and Fast Light
Selim M. Shahriar; Philip R. Hemmer; John R. Lowell, Editor(s)

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